A residual haunting is like an echo or a recording of a past event or strong emotion imprinted on the environment. It's not considered to be an interactive or conscious spirit but rather a playback of energy. The phenomena – whether visual apparitions, sounds (voices, footsteps), or even smells – tend to be repetitive, occurring in the same place and manner, much like a film loop. These 'ghosts' do not acknowledge or interact with living observers because they are not truly 'present' in a conscious sense. They are simply replaying a moment from the past, often one associated with intense emotion or tragedy.